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प्रश्न
State the composition of aqua regia. State which component is the oxidizing agent in aqua regia.
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उत्तर
A mixture having three parts conc. Hydrochloric acid and one part conc. Nitric acid is called aqua-regia.
Nitric acid acts as an oxidizing agent.
संबंधित प्रश्न
Potassium sulfite on reacting with hydrochloric acid releases _______ gas. (Cl2, SO2, H2S)
Name the gas that is produced in the given cases :
An action of dilute hydrochloride acid on sodium sulphide.
Name an element which reacts with hydrogen to form a compound which is strongly acidic in water.
Name the following:
Drying agent used to dry hydrogen chloride.
Name the following:
Gas obtained by treating ferrous sulphide with hydrochloric acid.
Name the following:
Five oxidizing agents that liberated chlorine from concentrated hydrochloric acid.
What would happen if
Calcium oxide is used to dry hydrogen chloride.
State the use of aqua-regia.
Write the balanced equation for the reaction of dilute hydrochloric acid with the following:
Sodium hydrogen carbonate
A solution of hydrogen chloride in water is prepared. The following substances are added to separate portions of the solution :
| S.NO. | Substances added | Gas evolved | Odour |
| 1. | Calcium carbonate | ______ | ______ |
| 2. | Magnesium ribbon | ______ | ______ |
| 3. | Manganese (IV) oxide with heating | ______ | ______ |
| 4. | Sodium sulphide | ______ | ______ |
Complete the table by writing the gas evolved in each case and its odour.
